Safety appliance for automobiles.



E. 1.. ROBERTSON. SAFETY APPLIANCE FOR AUTOMOBILES.

APPLICATION FILED JAN. 9, 1911.

Patented Dec. 12, 1911.

EL. OBERTSON and axle and shows the supplementalwheel ERNEST LEG RAND ROBERTSON, OF GREENVIIJI LE, SOUTH CAROLINA.

' SAFETY APPLIANCE ron-nuromonrnns.

To all whom it may concern:

Be it known that I, ERNEST. L. Ronnn'rsoN,

a citizen of the .United States, residing at Greenville,

tain new and useful Improvements in Safety Appliances for Automobiles, of which the following is a Specification, reference being had thereinto the accompanying drawing.

This invention relates to vehicle wheels and the principal object of the same is to provide a means for attaching a principal wheel to the. axle'sothat if the tire of the principalwheel becomes punctured, a supcut by the rim.

. This invention is illustrated in the mompanying drawing, wherein' Figure 1 is an elevational view of 'awheel mounted'upon the axle. Fig. 2 is an enlarged view of the collar which holds the wheels in spaced relation. Fig. 3 is a perby numerals, it will be seen that this device I is intended to be mounted upon the axle journal 1 which may be of an-fj but in the view shown is of the type genend of the'axle journal and secured in,plac'e' by means of the nut 4 or by any other suitable means. A collar 5 is formed upon the ,axle journal intermediate its length and 'forms a means for preventing the collars .hereinafter set forth. from slipping longitudina'lly upon the axle journal. The cone bearing. collar comprises a pair of plates 6' and 'Leach of .which is made up of a pair of sections 8 and 9, which when placed together form a pair ofcircularplates. These plates are providedwith bearings 10 and- 11, 'which form opposite hearings to the bearings 2 and 3.- The lates are provided in their inner faces wit recesses 12 and 13 in which the collar 5 fits-whenthe plates are secured uponv the axle.

It will be noted "that when the plates are secured upon the axle, the sec- Speciflcation of Letters Patent. Application filed January 9, 1911.

in the county'of Greenville and .5 State of South Carolina, have invented cer-' plemental wheel will take up the load and; will save the punctured tire from becoming spective view of the axle and shows a-collar '1 esired type erally used as a steeringknuckle upon autol I and secured together,

formed upon the inner end of Patented Dec. Serial No. 601,646.

tions are placed at right angles to each other 1 as shown in Fig. 4 so that when the securing bolts 14 are passedthrough plates the se ctions of the plate 7 act as braces for the sections of the plate 6 and the sections of the plate 6 act as braces forthe sections of the plate 7. g .In assembling this device, the supplementary wheel 15 1s placed upon the axle and its hub rests at one end upon the bearing 2. The sections of the plate 6 are then placed upon the axle and ;have their bearing 10 supporting the opposite end of the hub of the wheel 15, and have the one half of the collar 5 fitting into the recess 13- sothat the plate securely holds the wheel in place and cannot move longitudinally upon the axle. The'sections of the plate 7 are now placed around the axle with the, remaining portion of the collar 5 fitting within the recess 12, and the plates secured axle and has one end of its hub resting upon the bearing 11 and has the other end of its hub supported by the assembled bearing 3 which is held in place by the nut 4. If the tire of the wheel 16 becomes punctured the wheel 15 comes in contact with the ground and the weight of the machine is supported by the wheel 15thus preventing the tire of together by the bolts 14. The wheel 16 is now placed upon the the wheel 16 from getting'what is called a 1 contact with the ground.

twill be dbvious that the supplemental heel in the present invention is adapted to be used in case of emergency when any accident should occur to the wheel thereby allowing the operator to-readily controlthe machine. v

WhatI claim is: 1 i 1. In a device of the character described, an axle, wheels mounted upon said axle, each of said wheels having a hub, plates mounted upon said axle between saidwheels bearings-formed upon said plate to support the adjacent ends of said wheel hubs, .whereby the wheels will be held in'spaced relation, and means for retaining the outer one of said wheels in place. 2. In a device of the character described,

an axle, a collar formed upon saidlaxle be-T-- wheels mounted upon said rim out, due to the rim of the wheel coming wheels and provided with recesses fitting said collar, means for holding said plates upon said collar, and a bearing mountedupon the outer endof said axle.

3. In a device of the character described, an axle, a collar formed upon said axle, wheels mounted upon said axle at either side of said collar and each having a hub, plates mounted upon said axle and surrounding said collar, said collar holding said plates against longitudinal movement upon said axle, bearings formed upon said plates to support the adjacent ends of the Wheel hubs, a bearing formed upon the inner end of said axle, and a bearing removably mounted upon the outer end of said axle.

4. In a device of the character described, anaxle, Wheels mounted upon said axle, plates mounted upon said axle between said wheels, each of said plates comprising a plurality of sections, the sections of one of said plates being positioned at an angle to mamas the sections of the other of said plates, means for removably holding said plates together, means for holding said plates against longitudinal movement upon said axle, and bearings at the inner and outer ends of said axle.

5. In a device of the character described, an axle, a bearing at the inner end of said axle, a collar formed between the ends of said axle, removable plates surrounding a said collar, bearings formed upon said plates, said collar holding said plates against longitudinal movement upon said axle, a removable bearin of said axle and means or holding the removable bearing in place.

, In testimony whereof I hereunto aflix my signature in presence of two witnesses.

ERNEST LEGRAND ROBERTSON.

at the outer end 

